I find it a bit funny how the kneejerk reaction from many on these discussion boards is the blame Democratic politicians.
The Clean Air Act at the source of this issue was signed into law by one Richard Nixon (R).
The Amendment to the Clean Air Act that required the EPA to develop stronger emission controls on major sources of air pollution was signed into law by one George H.W. Bush (R),
The 2008 regulations implementing the provisions of the Amended Clean Air Act were promulgated during the administration of one George W. Bush (R).
The case EPA brought against G&W happened in 2019 during the administration of one Donald Trump (R).
This ain't a one sided issue by any means.
To the questions Del Monte Burns asked, the 2008 regulations specifically exempt steam locomotives used in museum or public attraction service. The regulations break locomotives built or remanufactured between 1973 and the present into four tiers of emission requirements, with different calendars for switching and line haul service. This website does a pretty good job of summarizing the requirements.
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dieselnet.com]
Locomotives built prior to 1973 are exempt unless they get enough work to qualify as a remanufacture. There are several businesses out there, Western Rail among others, that appear to be doing pretty good business now dropping Cummings or equivalent engines into older locomotives. Yeah, they could be placed on display or used as cab cars or things like that, if any museum was capable or willing of taking a non-operational engine and devote resources to it.
Jeff Moore
Elko, NV